Railway truck



Oct. l1, 1938. D. s. BARROWS 2,132,386

RAILWAY TRUCK Filed Jan. 20, 1938 2 Sheets-Sheet l Siwa/Wto@ Oct. l1, 1938. 1;)l S, BARROWS 2,132,386

RAILWAY TRUCK Patented Oct. 11, 1938 PATENT OFFICE RAILWAY TRUCK Donald S. Barrows, Rochester, N. Y., assigner to The Symington-Gould Corporation, Rochester,

N. Y., a corporation of Maryland Application January 20, 1938, Serial No. 185,953

This invention relates to`railway vehicles and more, particularly to the truck'portion thereof and the construction of the side frames andjournal boxes.

The invention herein disclosed and claimed is a modication of the railway truck, and particularly the side frame, journal box and spring means therefor, illustrated and described in my copending application Serial No. 10,706, filed March 12, 1935.

One of the principal objects of the present invention is to improve the construction of railway trucks, and particularly that of the side frames and journal boxes, wherein the provision is made I for resiliently mounting the side frames on the journal boxes for vertical movement with respect thereto and the journal boxes are arranged for horizontal angling with respect to the side frames.

Another object of the present invention is to arrange and lconstruct the associated parts of a railway truck, and particularly the side frame and journal box portions thereof, so as to decrease or minimize the frictional resistance between a side frame and journal box and the interposed spring means upon any deviation of the journal box from a right angle relationship with respect to the side frame. v

A further object of the invention is the provision, in a railway truck, of means associated with the side frame and spring means so as to retain the spring means in assembled relation with the side frame upon the removal of the journal boxes and immediately associated structures from an assembled truck structure, which may be for the purpose of changing or replacing the wheels,

journal boxes or journal bearings.

These and other objects ofthe invention will become apparent from the following detailed description of the structure, when considered together with the accompanying drawings which illustrate an exemplary `form of the invention and wherein:

Figure 1 is a fragmentary side elevational view of an embodiment of the invention.

Figure 2 is a plan view of the embodiment illustrated in Figure 1 and taken along the lines 2-2 of Figure 1, looking in the direction of the arrows; a portion thereof being shown in horizontal section.

Figure 3 is a vertical sectional view taken along the lines 3-3 of Figure 1, looking in the direction of the arrows.

4 Figure 4 is a vertical sectional View taken along the lines 4-4 of Figure 1, looking in the direction 55 of the arrows.y

Figure 5 is a vertical sectional view taken along the lines 5--5 of Figure 2, looking in the direction of the arrows and illustrating a portion of the side frame removed from the assembled structure.

Figure 6 is a sectional View taken along the lines 6 6 of Figure 1, looking in the direction of the arrows.

Referring now in detail to the drawings, wherein like reference characters designate like parts, l0 there is illustrated a fragmentary portion of a railway truck I which comprises a pair of laterally spaced side frames 2, only one of which is partially shown. Each side frame comprises a compression member 3 in vertically spaced relation 15 to a tension member 4. The compression and tension members are connected intermediate their ends by spaced guide columns (not shown) to form the usual bolster opening therebetween. Each side frame has downwardly opening pockets 20 or jaws 1 adjacent each end thereof to receive or accommodate a suitable journal box 8. The compression member 3 preferably comprises a web 9 which extends longitudinally of the side frame for substantially the full length thereof to overlie 25 the pockets or jaws 1. Spaced vertical flanges I0, depending from the lateral edges of the web 9, extend from end to end of the side frame and are provided with inwardly directed reinforcing beads II throughout a portion of their length. 30 The compression member web is desirably bifurcated at each end thereof, as at I2, to form end flanges I3 which extend downwardly and merge into the end edges of the anges I0.

The tension member 4, outwardly of each of 35 the previously mentioned guide columns, comprises diagonally disposed portions I4 directed upwardly toward the compression member and outwardly toward the corresponding end of the side frame. The portion of the side frame illustrated 40 is of the double truss type, but it will be understood that it is not vthe present intention to limit the invention to this particular type of side frame. Each of the diagonal portions I4 is provided with an auxiliary transverse web I5 which 45 is diagonally disposed to and spaced from a main web I6 throughout the major portion of the length thereof. The auxiliary and main webs y are integrally united by means of spaced vertical intermediate anges I1 which decrease in height 50 as they approach the outer extremity of the diagonal portion I4 where the auxiliary and main webs merge to form a single plane web I8, as most clearly illustrated in Fig. 5. The main web I6 has, depending from the lateral edges thereof;-

a pair of spaced vertical anges i9 the lower or free ends of which terminate in inwardly directed re-entrant flanges 20. The re-entrant anges 2li are desirably connected by a supplemental lower web 2l which is positioned below and in spaced relation to the web I8 in the proximity of the upper portion of the tension member 4.

'Ihe anges I0 of the compression member and anges I9 of the tension member merge or are joined adjacent each end of the tension member to continue outwardly or longitudinally of the side frame and tothus form inner and outer walls 22 of the pockets or jaws 1. The web i8 of the tension member, extending between the inner and outer walls 22, is offset upwardly, as at 23, immediately beyond the juncture of the anges i9 and i9, to be directed in a substantially horizontal plane longitudinally of the side frame toform a spring means bearing portion or spring seat 24, which underlies the extremity of the web 9 in spaced relation thereto.

It will be noted from the preceding description that the diagonal portion I4 assumes an inverted hollow T-shaped construction adjacent the lower portion thereof which decreases in height as it approaches the juncture of the anges l and I9, to finally merge into an inverted channel section immediately beyond the said juncture.

In order to dampen out vibrations, as Well as to cushion shocks which, during service of a railway truck, are transmitted to the supporting Wheels la by reason of the said wheels progressing or traveling over rail-joints and irregularities-in the rails, there is provided between each journal box 8 and the corresponding end of the side frame a nest of spring means. The spring means of the present embodiment of the invention comprises a pair of helical spring units 25, each spaced on either side of the journal box, and a friction spring unit 26 positioned above the journal box. The particular friction unit illustrated is of the type described and claimed in my andEmil H. Blattners pending application, Serial No:` 113,495, led November 30,' 1936.A It will, of course, be clearly understood that the present invention need not be limited to the use of this particular type of friction spring unit, as it is being disclosed merely for the purpose of exemplication and that other types of resilient means may be equally and advantageously employed at this particular position.

The journal box 8 desirably comprises a roof portion 21 provided with side walls 28 depending from the side edges thereof. The lower or free ends of the side walls are curved inwardly toward the transverse plane of the box to merge and thus form the well 29 of the journal box. The upper portion of each side Wall, intermediate the transverse ends thereof, is convoluted inwardly of the box, as at 3B, to form lugs which embrace and retain the journal bearing and wedge (not shown) in operative position.

In order to permit the journal box to angle horizontally with respect to the side frame and thereby incorporatel a desired degree of flexibility in the truck structure, the inner and outer transverse portions of the side walls 28 are provided with vertically disposed cylindrical convex surfaces 3! which are preferably cbaxial with the intersection of the transverse and longitudinal planes of the journal box, the latter of which is to be hereinafter referred to as the vertical axis of the journal box. The free ends of each jaw l are formed of flanges 32 which flare outwardly of the side frame to form journal box cooperating means in order to retain the journal box in or erative position. 'Ihe anges 32, which partially define each jaw or pocket, have vertically disf posed inner cylindrical concave surfaces 33 juxtapositioned and coaxial with the convex surfaces 3i of the journal box side walls. It will be noted that the concave surfaces 33 are also coaxial with the vertical axis of the corresponding journal box. The disposition of the coaxial surfaces 3i and 33 permits the side frame to move vertically with respect to the journal box as well as provides a free horizontal angling movement of the journal box between limits with respect to the side frame.

The friction spring unit 26, which is interposed between the roof portion 21 of the journal box and the web 9 of the compression member, extends through a suitable aperture 34 which is provided in the spring bearing portion 24 and positioned on the vertical axis of the journal box; suitable clearance being provided about the unit to permit a free unrestricted movement thereof with respect to the associated structures. The upper extremity of the friction spring unit extends into an upwardly directed relief or pocket 35 in the compression member web which forms a receptacle for the upper portionA of the unit so as to assist in retaining the unit in operative position. The lower extremity of the friction spring unit 26 is provided with arecess 36 which accommodates an upwardly directed bossor lug 31 upstanding from the journal box roof, thereby preventing the lower extremity of the unit from becoming accidentally displaced. The friction spring unit engaging surfaces 38 of the journal box roof and compression member web are preferably formed as plane surfaces, and the bearing end surfaces 39 of the unit desirably taper or slope outwardly of the unit from a position adjacent the longitudinal center of the unit toward the peripheral edges thereof. The end portions of the unit particularly decrease in thickness from adjacent the central portion thereof toward the outer edges so as to permit the unit to rock or pivot about its longitudinal axis and thereby decrease or minimize the frictional resistance between the unit and thecompression member web and journal box roof upon any deviation of the journal box from a true or normal right angle relationship with respect to the associated side frame.

The helical spring units 25 each desirably comprise a helical spring- 40 having substantially counterpart spring caps 4l associated with each end thereof. The spring caps 4I are provided with centrally disposed reliefs or inwardly directed hollow bosses 42 which extend into the helical springs and thereby prevent relative movement or transverse shifting between the springs and caps. In order to retain the helical spring unitsin assembled relation the spring cap bosses 42 are apertured, as at 43, and the apertures are occupied by a vertically disposed tie bolt 44 which extends between and operatively connects the spring caps. The reliefs or bosses 42 are desirably made sumciently deep so as to permit the helical spring 40 to compress a predetermined degree or amount without fouling the bolt, thereby permitting the helical spring unit 25 to act freely without any interference during the compressive movement thereof from the tie bolt 44. The helical spring units 25 are interposed between the spring bearing portion 24 of the side frame and journal box shelves or ledges 45, the latter of which extend longitudialsace@ nally of the side frame from the journal box side walls 28 to form spring seats. The hshelves are desirably positioned in the proximity of the horizontal plane which intersects the longitudinal center of the journal and which is indicated by the diagrammatic line 46. The connection between the shelves 45 and journal box side walls is reinforced by gussets or side flanges 41 which extend outwardly of the journal box and distribute the stresses transmitted to the shelves by means of the spring units 25 over a suitable area of the journal box side walls.

The side flanges 41 are cylindrical in form and desirably struck from the vertical axis whichv is common with the longitudinal axis of the corresponding spring means 25. The anges are preferably formed as continuations of the intermediate portions 48 of the side walls, the latter of which extend between the side wall outer po`r tions 28. The flanges 41 and the intermediate portions 48 of the side walls form a vertically disposed cylindrical housing on either side of the journal box for partially encasing the respective helical spring means 25.

The outer or free peripheral edges of each of the shelves are provided with upstanding peripheral cylindrical flanges 49 which are coaxial with and form a continuation of the anges 41. It will be thus observed from the preceding description that the shelves are formed as upwardly directed pockets to prevent the accidental displacement of the lower extremity of the hellcal spring units 25. The upper extremity of the inner spring unit is retained in operative position by means of the downwardly directed pocket formed in part by the offset portion 23 of the tension member web, while the accidental displacement of the upper portion of the outer spring unit is prevented by the downwardly facing pocket in the side frame which is formed in part by the cylindrical end wall 50, the latter of which forms a continuation of the outer extremity of the spring bearing portion 24.

In order to provide for the removal of the journal box 8 from an assembled truck structure and at the same time retain the helical spring units 25 in assembled relation with the side frame, there has been provided in each jaw or pocket oppositely disposed fingers or webs l which `extend inwardly of the side frame from the side walls 22. The webs ,5I are spaced below the spring bearing portion 24 and desirably underlie the upper spring caps 4i in spaced relation, so that the helical spring units may be free to rock or pivot about their longitudinal axis. Upon the removal of the journal box from the assembled truck` structure, the upper spring caps will engage the webs 5i and thereby limit the downward movement of the helical spring units 25. By thus providing means for the suspension ofthe helical spring units within the side frame it will be clearly observed that the journal box and associated structure may be removed for the purpose of replacement or repair without necessitating the removal of the helical spring units. As the webs 5i extend into the vertical plane of the spring caps, the spring units 25 are assembled with the side frame by initially positioning the units in the pocket space normally occupied by the journal box and then moving the units longitudinally of the side frame until they reach their normal positions. In this manner of assembly/,the upper spring cap of. each unit will be positioned between the spring means seat 24 and the webs 5i.

The inner portion of the inner and outer walls 22 of each journal box receiving jaw 1 is provided with concave cylindrical surfaces 52 which are coaxial with the vertical axis of the corresponding spring unit 25 and are adapted to be engaged bythe journal box shelves to thereby limit the angling 'movement of the journal box. As will be clearly understood, the clearance between the journal box shelves 45 and the cylindrical concave surfaces 52 isdeterminative oi the amount of horizontal angling permitted in the journal box relative to the side frame.

The forces that tend to rotate the journal box horizontally with respect to the side frame originate in the wheels and axles of a railway truck and from there are transmitted to the journal box through the journal bearings and journal wedges. It will be appreciated'that the superimposed load on the helical spring units may stiien the helical springs 40 to such an extent as to prevent any distortion in the helical springs upon the departure of the journal box from a normal perpendicular relation with respectI to the side frame. With this condition existing the forces transmitted through the journal bearings and journal-wedges must of necessity be sufiicient to overcome the frictional forces between the spring caps 4I and the engaging portions of the side frame and journal box. It may easily be conceived that if suitable structure is not provided to decrease or minimize the above referred to frlctional forces, the bearing portion of the axle would tend to wear the journal bearing corset-shaped or :truste-conical before sufdcient force were exerted to rotate the journal box horizontally; this wear in the journal bearing would, therefore, materially decrease the elciency of the bearing or the bearing area between the journal bearing and axle.

In order to overcome this above referrred to and undesirable possible condition and further to minimize or decrease the frictional force between the helical spring units and the bearing portions of the side frame or journal box, the present construction is arranged so that the helical spring units may be free to rock or rotate about their respective longitudinal axes. To accomplish thisl desired result, each spring cap is provided with an `outer spherical convex surface 53 which bears against a corresponding inwardly directed spherical concave surface 54 on the spring bearing portion 24 of the side frame and shelves 45 of the journal box, respectively. The radii of the convex surfaces 58 are desirably slightly less than the radii of the concave surfaces 54, thereby permitting the helical spring means to roll or rock on the concave surfaces upon any departure of the journal box from a true right-angle relationship with respect to the side frame.

Lugs or ears 55 extend downwardly from the in-` ner and outer side walls of each jaw l to a position beneath the horizontal plane of the journal box shelves. Bolts 55 extend transversely of the side frame through suitable aligned apertures 51 provided in the lugs 55; the bolts underlie the shelves in spaced relation and form limiting or stop means to prevent an undesired or accidental removal of the journal box from the assembled truck structure.

It will, of course, be understood that it is not the present intention to limit the instant invention to the use of va journal box of the exemplified form in combination with the particular features of construction of the illustrated side frame, as it will be clearly understood that the construction of the side frame, which is intimately associated with thejournal box, may be easily incorporated in a separable truck pedestal.

From the foregoing description, taken in con-` sideration with the accompanying drawings, it

will be observed that the present railway truck4 comprises a novel form and arrangement of side frame, journal box and spring means wherein the side'frame may move vertically within a predetermined degree with respect to an underlying journal box, and the journal box may angle horizontally with respect to the superimposed associated side frame to thereby form an improved railway truck structure containing a desired degree of flexibility with provision ifor decreasing or minimizing the frictional force between the interposed spring means and the associated structure.

Merely a preferred embodiment of the present invention has been disclosed and described, and it will be appreciated that numerous alterations in design or changes in construction are anticipated and that such alterations and changes may be made to the present illustrated structure without departing from within the spirit and scope of the appended claims.

I claim:

1. In a railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, a separable journal box removably associated with each jaw, juxtapositioned substantially coaxial cylindrical surfaces on said jaws and side walls of said'journal boxes to allow each journal box to angle horizontally with respect to the side frame, shelves extending longitudinally of said side frame from each journal box, vertically spaced seats on said side frame and shelves having concave surfaces, and springmeans interposed between said side frame and shelf seats, said spring means including a helical springv having spring caps associated with each end thereof, said spring caps having convex surfaces in bearing relation with said concave seat surfaces so as to permit the spring means to rock about its longitudinal axis upon the departure of the journal box from its normal right-angle relationship with respect to the side frame.

2. In a railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, a separable journal box removably associated with each jaw, juxtapositioned coaxial arcuate surfaces on said jaws and side walls of said journal boxes to allow horizontal angling between each journal box and the side frame, shelves extending ,longitudinally of said side frame from each journal box, vertically spaced seats on said side frame and shelves having spherical concave surfaces, and spring means interposed between said side frame and shelf seats, said spring means including a helical spring having spring caps associated with each end thereof, said spring caps having spherical convex surfaces in bearing relation with said spherical concave seat surfaces, said convex surfaces being of lesser radius than the concave surfaces so as to permit the spring means to rock about its longitudinal axis upon the de-v Darture of the journal box from its normal position.

3. In a railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, vertically disposed cylindrical concave surfaces on said jaws, a separable journal box removably associated with each jaw having side walls provided with convex cylindrical surfaces juxtapositioned with respect to said jaw surfaces so as to allow relative horizontal angling between each journal box and the side frame, vertically spaced seats on said side frame and journal boxes, said seats being positioned on the longitudinal axis of the side frame and having spherically concave surfaces, spring means spaced on either side of each journal box and interposed between said side frame and journal boxes, said spring means comprising helical springs having caps associated with each end thereof, said caps having spherical convex surfaces in engagement with said concave surfaces, whereby upon any deviation of said boxes in an angular direction with respect to said side frame and from their normal position, the spring means will be free to move with reference to theirfnormal respective longitudinal axes.

4. A side frame having a compression and a tension member, said compression and tension members merging adjacent the ends of the frame and formed integrally with downwardlyopening journal box receiving jaws, spring seat means formed on said compression member and longitudinally spaced spring seats formed in said tension member adjacent each jaw, said tension member spring seats having spherical concave surfaces so as to permit associated spring means to move freely relative thereto.

5. A side frame having spaced compression and tension members, said compression and tension members comprising a transverse web and flanges depending from the edges thereof, the anges of said members merging adjacent the ends of said frame to form journal box receiving jaws, saidltension member web beyond said juncture extending longitudinally of the frame in spaced relation to said compression member web and integrally joining said flanges, and downwardly opening spring seats on said compression and tension member webs; said tension member spring seats being associated with each jaw and havingspherical concave surfaces so as to permit an associated spring means to move relatively thereto.

6. A journal box having a roof and side walls, shelves extending outwardly of said side walls in a plane below said roof, upwardly facing spring seats on said roof and shelves, said side walls having cylindrical convex surfaces spaced on either side of said shelves and coaxial with respect to one another so as to permit the box to angle horizontally with respect to an associated truck member, and spherical concave surfaces on said shelf spring seats so as to permit'associatedv spring means to move relatively thereto.

7. In a railway truck having downwardly open- ,v

ing journal box receiving jaws adjacent each end thereof, vertically and longitudinally spaced spring seats formed in said truck adjacent each jaw, some of said spring seats having spherical concave surfaces so as to permit associated spring means to move freely relatively thereto, and coaxial cylindrically concave surfaces on said jaws to allow associated journal boxes to angle horizontally with respect to said jaws.

8. In a side frame having a compression and a tension member -merging adjacent the ends thereof and formed integrally with downwardly opening journal box receiving jaws, vertically and longitudinally spaced spring seats-formed in said side frame adjacent each jaw, some of said spring seats having spherical concave surfaces so as to permit associated spring means to move relatively thereto, said side framel having inner cylindrical concave surfaces extending downwardly from some of the spring seats and adapted to engage correspondingly formed surfaces on an asv 2,182,386 sociated journal box, whereby said box may angle l horizontally with respect to the side frame.

9. A side frame having spaced compression and tension members, said members comprising Aa transverse web and flanges depending from the lateral edges thereof, the flanges of said members merging adjacent the ends of said frame to form journal box receiving jaws, the web of the tension member extending outwardly of said juncture and connecting said depending flanges, downwardly opening spring seats on said compression and tension member webs, said tension member spring seats having spherical concave surfaces so as to permit associated spring means to move relatively thereto, the portions of the depending anges below said .tension member spring seats having cylindrical concave surfaces adapted to engage correspondingly formed surfaces on an associated journal box, whereby said box may angle horizontally with respect to said side frame.

10. A journal box having a roof and side walls, shelves extending outwardly of said side walls in a plane below said roof, upwardly facing spring seats on said shelves having spherical concave Surfaces so as to permit associated spring means to move relatively thereto, vertically disposed cylindrical flanges extending outwardly of said side walls and merging with said spring seats, and vertically disposed cylindrical convex surfaces on said side walls outwardly of said flanges so as to permit the journal box to angle horizontally with respect to an associated side frame.

11. A journal bo-x having a roof and side walls, shelves extending outwardly of said side walls in a plane below said roof, upwardly facing spring seats onsaid shelves having spherical concave surfaces so as to permit associated spring means to move relatively thereto, vertically disposed cylindrical flanges extending outwardly of said side walls and merging with said spring seats, said cylindrical flanges being coaxial with the vertical axis of said corresponding spring means, and cy lindrical convex surfaces on said side walls adjacent said fianges, said convex surfaces being coaxial with respect to one another.

12. In a railway truck, in combination, a side frame comprising a compression and a tension member each of which comprises laterally disposed webs and spaced flanges depending from the side edges thereof, said compression and tension member flanges merging adjacent the ends of the side frame and having downwardly opening jaws formed therein, a separable journal box positioned in each of said jaws and being adapted to move vertically and to angle horizontally with respect to said side frame, said journal box comprising a roof and side walls, shelves extending' outwardly of said side walls, spring seats on said compression and tension member webs spaced above corresponding spring seats formed on said journal box roof and shelves respectively, spherical concave surfaces on said tension member and shelf spring seats, spring means interposed between said side frame and journal box and in bearing engagement with all of said spring seats, spherical convex surfaces on some of said spring means in intimate contact with said concave surfaces, cylindrical convex surfaces on said journal box adjacent said shelves adapted to engage correspondingly formed cylindrical concave surfaces on said side frame, and cylindrical flanges extending outwardly of said journal box side walls adapted to engage correspondingly formed surfaces on said side frame in order to limit the angling movement of the journal box.

13. A railway truck, in combination, a side frame having'downwardly opening jaws at each end thereof, a separable journal box removably associated with each jaw, shelves extending longitudinally of the side frame from each journal box, vertically spaced spring seats on said side frame and shelves, spring means disposed between said side frame and shelf seats, said spring means comprising helical springs having upper and lower spring caps associated with the ends thereof, and means extending inwardly of the side frame and underlying said upper spring caps, thereby limiting the downward movement of said spring means.

14. A railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, a separable journal box removably associated with each jaw, shelves extending 1onvgitudinally of the side frame from each journal box, vertically spaced spring seats on said side frame and shelves, spring means disposed between said side frame and shelf seats, said spring means comprising helical springs having upper and lower spring caps associated with the ends thereof, tie means extending through said spring means and connecting said spring caps, and integral means extending inwardly of the side frame and underlying said upper spring caps, thereby limiting the downward movement of said spring means.

15. A side frame having a compression and a tension member, said compression and tension members comprising a transverse web having flanges depending from the lateral edges thereof, the flanges of said members merging adjacent the ends of the frame and formed integrally with downwardly opening jaws, said tension member web, beyondsaid flange juncture, extending longitudinally o-f the side frame in spaced relation to and below said compression member web, downwardly opening seats on said tension? member web adjacent said jaws for the accommodation of associated spring means, and means extending inwardly of the side frame from said flanges and immediately below said seats to form stops to limit the downward movement of said 'spring means.

16. A side frame having a compression and a tension member, each including a transverse web having flanges depending from the lateral edges thereof, the flanges of each member merging adjacent the ends of the frame and formed integrally wtih downwardly opening jaws to form journal box receiving openings, downwardly opening spring means seats on said tension member web spaced on either side of said opening, webs extending inwardly of said flanges in lower spaced relation to said spring means seats whereby, upon assembly of spring means with the side frame, the said spring means are initially positioned in said journal box opening and then moved longitudinally o-f the side frame to have a portion thereof interposed between said spring means seats and inwardly extending webs.

17. In a railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, a separable journal box movably associated with each jaw, juxtapositioned cylindrical surfaces associated with said jaws and side walls of said journal boxes to allow horizontal rotative movement of said boxes, shelves extending longitudinally ofy said side frame from each journal box, oppositely disposed seats on said seats'being positioned on the longitudinal axis of said side frame, and spring means interposed between said side frame and shelf seats, said spring means including a helical spring having caps associated with each end thereof, certain of said spring caps and the coacting seat portions of the journal boxshelves being so formed as to permit the spring means to oscillate about its longitudinal axis upon departure of each box from its normal position,

18. In a railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, a separable journal box associated with each jaw and adapted to move vertically with respect to the side frame, coacting coaxial surfaces on said journal boxes and jaws so as'to allow said journal boxes to angle horizontally with respect to said side frame, shelves extending outwardly of each journal box, oppositely disposed seats on said journal box shelves and side frame, and spring means interposed between said side frame and shelf seats, said spring means including a helical spring having caps associated with each end thereof, said spring means caps being in intimate contact with said side frame and shelf seats, the coacting ,side frame seats and associated caps being so formed as to permit the spring means to oscillate about its longitudinal axis upon departure of each journal box from. its normal position.

19. In a railway truck, in combination, a side frame having downwardly opening jaws at each end thereof, a separable journal box associated with each jaw and adapted to move vertically with respect to the side frame, coacting arcuate surfaces on each box and associated jaw so as to permit the journal box to angle horizontally with respect to the side frame, shelves extending outwardly of each journal box, oppositely disposed seats von said journal box shelves and side frame, said seats being position d on the longitudinal axis of said 'side frame, nd spring means positioned in said jaws and interposed between said side frame and shelf seats, said spring means including a helical spring having caps associated with each end thereof, certain of said caps engaging the journal box shelf seats and at least one of said engaging portions having a curved surface so as to permit the spring means to rock about its longitudinal axis upon departure of each journal box from its normal position.

20. A side frame having a compression member and a tension member, said compression and tension members each involving a transverse web and laterally spaced downwardly extending anges, said anges merging adjacent each end of the side frame to form downwardly opening journal box receiving pockets, a portion of said tension member inwardly of said ange juncture being diagonally disposed to said compression member, the tension member web adjacent said ilange juncture being offset upwardly in a vertical direction and outwardly in a horizontal direction in lower spaced relation to said compression member web, said horizontal portion forming spring means seats having downwardly facing concave surfaces for engagement with associated spring means, and ianges extending inwardly from said journal box jaws positioned in lower spaced relation to said spring seats, said anges forming retaining means for limiting the downward movement of said associated spring means.

21. In a railway truck, in combination, a side 2,132,886 journal box shelves and side frame, said spring frame having compression and tension members merging adjacent the ends thereof to form downwardly opening journal box receiving pockets, longitudinally spaced spring seats formed in said side frame adjacent each pocket, a vertically movable journal box positioned in each pocket, convex cylindrical surfaces on side walls of each journal box for surface bearing engagement with correspondingly formed concave surfaces on said side frame in order to permit each journal box to angle horizontally with respect to the side frame about its vertical axis in any vertical position of the journal box, substantially horizontal shelves extending from vsaid journal box side walls, spring means interposed between said shelves and side frame spring seats, said shelves, spring seats and spring means being disposed and arranged so as to permit one end of said spring means, upon any deviation of the journal box from normal right-angle relationship with respect to the side frame, to follow an arcuate path about the other end of the spring means.

22. In a railway truck, in combination, side frames having spaced compression and tension members each of said tension members having longitudinally spaced portions diagonally disposed with respect to the associated compression member and integrally joined to the associated compression member to form downwardly opening pockets at each end of said side frames, journal boxes removably associated With each side frame and each positioned within a pocket thereof, juxtapositioned cylindrical surfaces on said side frames within each pocket and on side walls of each journal box to permit a horizontal rotative movement of the journal boxes with respect to the side frames, shelves extending longitudinally of the associated side frame from each journal box to within said pockets, vertically spaced seats on said shelves and side frames, and means interposed between and bearing on said spaced seats, said means including a spring having caps associated with each end thereof, said caps and seats having rocking means associated therewith whereby the journal boxes are free to rotate horizontally from normal position.

23. A side frame having a compression and a tension member merging adjacent the ends of the frame to form downwardly opening journal box receiving jaws, longitudinally spaced spring seats formed in said side frame adjacent each jaw, spring means within said jaws, said means including upper spring caps engaging said spring seats, and means positioned within each jaw adapted to engage said upper caps to form stops to limit the downward movement of associated spring means.

24. A side frame having a compression and a tension member merging adjacent the ends of the frame to form journal box receiving jaws, a spring pocket formed in each jaw, downwardly facing spring seats formed on said tension member and dening the upper extremity of said spring pockets, and webs formed on said side frame beneath said spring seats and adapted to form abutments to limit the downward movement of associated spring means.

25. A journal box having a roof and side walls, shelves extending outwardly of said side walls in a plane below said roof, upwardly facing spring seats on said shelves having arcuate surfaces so as to permit associated spring means to move relatively thereto, pairs of vertically disposed amados drlcal convex surfaces on said side walls extend-l ing upwardly from said shelves so as to allow the journal box to angle horizontally with respect to an associated side frame.

26. A journal box having a roof and side walls, shelves extending outwardly of said journal box in a plane below said root, upwardly facing spring seats on said shelves having spherical concave surfaces so as to permit associated spring means to move relatively thereto, and vertically disposed cylindrical convex surfaces .on said side walls positioned on either side of said shelves so as to allow the journal box to angle horizontally with respect to an associated side frame.

2'?. lin a railway truck, in combination, a side frame having journal box receiving jaws atone end thereof, a vertically movable journal box positioned between said jaws, shelves extending voutwardly of said journalbox, spring means positioned in each jaw and interposed between said side frame and shelves, juxtapositioned cylindrical surfaces on said jaws and side walls of said journal box to allow the journal box to angle horizontallyvwith respect to the side frame, cylindrical iianges extending outwardly of said journal box side walls and merging with said shelves, cylindrical surfaces in each jaw adapted to be engaged by said cylindrical flanges so as to limit the angling movement of said journal box, said side frame, shelves and spring means being arranged and constructed so as lto permit one end of each means to move in an arcuate path about the other end thereof during horizontal angling movement of the journal box.

28. A journal box including a roof and spaced vertically disposed side walls, cylindrical convex surfaces on said journal box side walls adapted to engage correspondingly formed surfaces on an associated side frame so as to allow the journal box to angle horizontally with respect to the side frame, shelves extending outwardly of said side walls in a plane below said roof and forming seats for associated spring means, transverselyl spaced flanges extending outwardly from each side wall and merging with said shelves to form a housing for said spring means, and flanges upstanding from the outer end of said shelves and connecting said transversely spaced iianges.

29. A. journal box having a roof and side walls, shelves extending outwardly of said side walls in a. plane below said roof, upwardly facing' spring seats on said shelves, a pair of vertically disposed anges integrally formed on and extending outwardly of each side wall, cylindrical convex surfaces on said side walls extending upwardly from said shelves so asvto allow the journal box to angle horizontally with respect to an associated side frame, said surfaces being coaxial with respect to the vertical axis of said journal box, and means extending upwardly from the peripheral edge of each shelf to retain spring means in operable position said means joining said flanges.

30. In a railway truck, in combination, a side frame including a compression member and a tension member joined adjacent one end of the side frame to form a journal box receiving pocket, said compression member having a web extending longitudinally of the side frame and overlying said pocket, a substantially horizontai web in lower spaced relation to the compression member and defining the upper extremity of said pocket, a vertically movable journal box in said pocket, cylindrical convex surfaces on side walls of said journal box adapted to engage correspondingly formed surfaces on said side frame so as to permit the journal box to rotate in a horizontal plane relative to the side frame, means associated With said side walls to limit the rotative movement of the journal box, an aperture in said horizontal web, spring means extending through said aperture and interposed between said compression member web and journal box, and longitudinally spaced transversely extending means removably associated with said side frame adjacent the lower extremity of said pocket adapted to prevent the undesired removal of the journal box from the side frame.

DONALD s. inmaows. 

